System for remote communication of heartbeat

ABSTRACT

A system for remote communication of physiological information from one person to another and, more particularly, the mutual communication of heartbeat between two persons. The system comprises a web server which cooperates with two remote installations identified as A and B. Each of the remote installations comprises a heartbeat sensor, a pillow, and a local host. The local host may be a personal computer or laptop, or a suitable mobile phone running an appropriate application. The heartbeat sensor monitors the heartbeat of person A which is communicated via their pillow, their local host and a server, and then via a second local host to produce a visual and audible representation of heartbeat A in a pillow located with person B. At the same time, the heartbeat of person B is represented in the same manner at the pillow of person A.

FIELD OF THE INVENTION

This invention relates to a system for remote communication ofphysiological information from one person to another, and moreparticularly the mutual communication of heartbeat between two persons;and to related methods and products.

BACKGROUND OF THE INVENTION

Modern technology has enabled a vast increase in the ability tocommunicate remotely, as by landline and mobile telephone, and Internetenabled services such as email and VOIP. However, all of these areessentially based on written or verbal communication. The presentinvention arose from a desire to utilise technology to bring peopletogether in a more intimate way. When partners are geographicallyseparated, they have an emotional need not only to communicate by voiceor script, but also by continuing some feeling of physical proximity andintimacy.

The present invention addresses this need.

SUMMARY OF THE INVENTION

Accordingly the present invention in one aspect provides a system forremote communication of heartbeat; the system comprising:

-   -   a heartbeat sensor module attachable to a subject, the heartbeat        sensor module having a heartbeat sensor operating to produce a        signal representing the heartbeat of the subject and a wireless        communication transmitter for communicating said heartbeat        signal;    -   a host device located in proximity to the subject, the host        device including a wireless communication receiver for receiving        said heartbeat signal, and including data transfer means for        communicating said signal over a data network;    -   a server connected to the data network to receive said signal        and to communicate it to an authorised destination host device;    -   a destination host device connected to the data network to        receive said signal when authorised;    -   an output device for producing a visual and/or audible        representation of the source heartbeat.

In a particularly preferred form of the system, the source includes anoutput device and the destination includes a heartbeat sensor module,whereby heartbeat signals are mutually exchanged between two subjects.

Preferably, each of the output devices comprises a loudspeaker and/or alight source optionally for locating within a pillow or pillow covering.

The output device may be in the form of a pillow or pillow coveringcomprising a loudspeaker and/or a light source.

Preferably also, the heartbeat sensor module (or each of the heartbeatsensor modules) is in the form of a finger ring.

Each heartbeat sensor module may communicate with its host device viaits output device. Preferably each heartbeat sensor module communicateswith its output device via ISM radio, and each output devicecommunicates with its host device via Bluetooth.

Each output device preferably has a unique ID, and each heartbeat sensormodule after powering up locks to the ID of a given output device.

From another aspect, the present invention provides a heartbeat sensormodule for use in the foregoing system, comprising a heartbeat sensoroperating to produce a signal representing the heartbeat of the subjectand a wireless communication transmitter for communicating saidheartbeat signal; the module being in the form of a finger ring.

The heartbeat sensor module may include means for locking to the uniqueID of a given output device.

The invention further provides an output device for use in the abovesystem, comprising a visual and/or audible output unit for locatingwithin a pillow or pillow covering.

The output device may be in the form of a pillow having a pillowcovering and a resilient filling, and further comprising a visual and/oraudible output unit located within the pillow or pillow covering.

The output unit preferably comprises a loudspeaker and one or more LEDs.

The output device may include means for storing a unique ID and fortransmitting the unique ID to an associated heart sensor module.

Another aspect of the present invention provides a method of providingnon-verbal communication between two persons, A and B, who aregeographically remote, the method comprising monitoring A's heartbeatand communicating that heartbeat to B aurally and/or visually, andsimultaneously monitoring B's heartbeat and communicating that heartbeatto A aurally and/or visually.

The communication is preferably effected via a web server.

BRIEF DESCRIPTION OF THE DRAWINGS

An embodiment of the present invention will now be described, by way ofexample only, with reference to the drawings, in which:

FIG. 1 is a schematic block diagram of a system forming one embodimentof the invention;

FIG. 2 shows a heartbeat sensor module of FIG. 1 in more detail;

FIG. 3 is a perspective view of the heartbeat sensor module in the formof a ring;

FIG. 4 shows an output device of FIG. 1 in the form of a pillow; and

FIG. 5 shows circuitry contained in the pillow of FIG. 4 in more detail.

DETAILED DESCRIPTION

Referring to FIG. 1, the system comprises a web server 10 whichcooperates with two remote installations identified as A and B. Each ofthe remote installations comprises a heartbeat sensor 12, a pillow 14,and a local host 16. The host 16 may be a personal computer or laptop,or a suitable mobile phone running an appropriate application.

In outline, the heartbeat sensor 12A monitors the heartbeat of person Awhich is communicated via the pillow 14A, the host 16A and the server10, and then via the host 16B to produce a visual and audiblerepresentation of heartbeat A in the pillow 14B. At the same time, theheartbeat of person B is represented in the same manner at the pillow14A.

In this embodiment, communication between the heartbeat sensor 12 andits associated pillow 14 is by ISM radio, and between the pillow 14 andits associated host 16 is by Bluetooth. These are preferred for reasonsof convenience and low power consumption, but alternatively any suitablelink (preferably wireless) may be used; for example the link betweenpillow and host could be infrared.

In the present embodiment the heartbeat sensors 12 are in the form offinger rings as illustrated at 18 in FIG. 3. The ring 18 containscircuitry comprising a micro-controller 20, a heartbeat sensing unit 22,and a transceiver 24. A status LED 26 and on/off switch 28 may beprovided on the ring 18. The sensing unit 22 may comprise a LED andlight sensor which, as is known per se, detect heartbeat by detectingchanges in blood density in the peripheral blood vessels as bloodpressure changes under the action of the heart.

Turning to FIG. 4, the pillow 14 is largely a conventional pillow havinga covering filled with resilient material such as polyester wadding.However, within the cover there is also positioned an output unit 30. Asseen in FIG. 5, the output unit 30 comprises a micro-controller 32, anISM transceiver 34, a Bluetooth transceiver 36, a loudspeaker 38, andone or more LEDs 40. The loudspeaker 38 and LEDs 40 are located in theoutput unit and within the pillow 14 so as to be audible to a personclose to the pillow, and to give a visual glow through the pillowcovering.

Once a ring 12 is switched on, the ring transceiver 24 broadcasts heartrate approximately every 2 seconds. A pillow that receives thetransmission acknowledges it within 4 to 5 ms. Transmission is at 250kbps using burst transfers. On receiving an acknowledgement, the ring 12locks onto the ID of that pillow 14, and every heartbeat broadcastthereafter contains the ID of that pillow. This locking remains in placeuntil the ring is power cycled. A pillow will only accept signals froman unlocked ring, or signals that contain its own ID. This enablesmultiple rings and pillows to be used in close proximity.

If the ring receives no acknowledgement, it will turn off after apre-set time as a power saving measure.

The pillow 14 listens for packets from the ISM link and acknowledges asdiscussed above. If a Bluetooth connection to a host 16 exists, theheartbeat from the ring 12 is transmitted to the host 16.

The host 16 acts as a proxy between the Bluetooth connection and the webserver 10, and provides the user with feedback about the pairing of twopillows. The host 16 connects to a pillow 14 using the Bluetoothconnection; the pillow 14 is identified as an SSP device and appears asa virtual serial port on the host 16. Data rate is 115.2 kbps.

A standard HTTP protocol is used to transfer data between pairedpillows. The web server 10 provides the wide area connection between twopillows. It maintains a list of pillow IDs and corresponding heartrates. There is no peer-to-peer connection between the two users; thisis likely to be prohibited by many public (e.g. hotel) routers. Theserver 10 can be any standard HTTP server. It accepts HTTP requests toupdate records of pillow IDs and retrieve heart rates of paired pillows.

Each host 16 receives heartbeat data from its paired remote sensor. Thisis fed to the local pillow 14 and used to drive the loudspeaker 38 andLED 40.

Each host 16 has a front end application which graphically denotes thestatus of the local pillow and the remote pillow. A set-up screen isused to denote the paired pillow's ID and to adjust audio volume and LEDbrightness.

The output device may be in the form of a pillow unit, configured forplacement around a pillow or within a pillowcase. Alternatively theoutput device may be designed to be held by or worn by a person, orcould simply be designed to be placed on a bedside table, for example.As noted above, the heartbeat sensor module can communicate with itshost device via its output device.

The unique ID for each pillow is assigned as follows. Each Bluetoothmodule has a unique ID. Both the phone (or other local hub) and thepillow unit enter Bluetooth search mode. The pillow unit then becomesidentifiable on the phone, and thus visible to a user of the phone. Theuser then selects the pillow unit on the phone, and the devices arepaired. Once paired, the phone will remember the unique ID and willautomatically pair to the pillow unit when Bluetooth is on. If the userwishes to un-pair the phone from the pillow unit, they will select thisoption on the phone and re-pair to another pillow unit.

The features of the pillow unit (output device) and optionally the ring(heartbeat sensor) can be managed using bespoke software on, forexample, the phone. This can be in the form of a programme orapplication (app) as are commonly used on “smart” phones.

In one arrangement, the pillow unit has two different coloured LEDs andonce the devices are paired the phone will show the colour of the pillowunit. For example, the phone may show a blue link and a blue LED willshow on the pillow unit to indicate they are paired.

Further modifications may be made to the foregoing embodiment within thescope of the present invention. For example:

The ring may communicate directly to the host rather than via thepillow.

Heartbeat detection may be effected by other means, such as electricalconductance on the chest, or acoustically by microphone.

Wireless communication other than ISM and Bluetooth may be used.

Although two-way communication of heartbeat is preferred, the inventionin its broad aspect could be applied to one-way communication.

Whilst this invention has been described with reference to the sampleembodiments thereof, it will be appreciated by those of ordinary skillin the art that modifications can be made to the structure and elementsof the invention without departing from the spirit and scope of theinvention as a whole.

1. A system for remote communication of a current source heartbeat, thesystem comprising: a first heartbeat sensor module attachable to a firstsubject, the first heartbeat sensor module having a heartbeat sensoroperating to produce a signal representing the current source heartbeatof the first subject and a wireless communication transmitter forcommunicating the heartbeat signal; a host device located in proximityto the first subject, the host device including a wireless communicationreceiver for receiving the heartbeat signal, and including data transfermeans for communicating the signal over a data network; a serverconnected to the data network to receive the signal and to communicatethe signal to an authorized destination host device; a first destinationhost device connected to the data network to receive the signal whenauthorized; a first output device for producing at least one of a visualrepresentation of the current source heartbeat and an audiblerepresentation of the current source heartbeat; and a second outputdevice located in proximity to the first subject and a second heartbeatsensor module attachable to a second subject located in proximity to thefirst destination host device, whereby heartbeat signals are mutuallyexchanged between the first subject and the second subject.
 2. Thesystem of claim 1, wherein each of the first output devices and secondoutput device comprises at least one of a loudspeaker for locatingwithin a pillow or a pillow covering and a light source for locatingwithin a pillow or a pillow covering.
 3. The system of claim 1, whereinthe first output device and second output device is in the form of apillow, or a pH low covering, comprising a loudspeaker and/or a lightsource.
 4. The system of claim 1, wherein the first heartbeat sensormodule is in the form of a finger ring.
 5. The system of claim 1,wherein each of the first heartbeat sensor module and the secondheartbeat sensor module communicates with its host device via its outputdevice.
 6. The system of claim 5, wherein each of the first heartbeatsensor module and the second heartbeat sensor module communicates withits output device via ISM radio frequency, and each output devicecommunicates with its host device via Bluetooth wireless technologystandard.
 7. The system of claim 5, wherein each of the first outputdevice and the second output device has a unique ID, and wherein each ofthe first heartbeat sensor module and the second heartbeat sensor moduleafter powering up locks to the ID of a given output device.
 8. Thesystem of claim 1, wherein the first heartbeat sensor module comprises aheartbeat sensor operating to produce a signal representing the currentheartbeat of the first subject and a wireless communication transmitterfor communicating the heartbeat signal; the module being in the form ofa finger ring.
 9. The system of claim 8, wherein the first heartbeatsensor module includes a means for locking to the unique ID of a givenoutput device.
 10. The system of claim 1, wherein the first outputdevice comprises at least one of a visual output unit for locatingwithin a pillow or a pillow covering and an audible output unit forlocating within a pillow or a pillow covering.
 11. The system of claim10, wherein the first output device comprises a pillow having a pillowcovering and a resilient filling, and wherein the first output devicefurther comprises at least one of a visual output unit and an audibleoutput unit.
 12. The system of claim 10, wherein the output unitcomprises a loudspeaker and one or more LEDs.
 13. The system of claim10, wherein the first output device includes a means for storing aunique ID and for transmitting the unique ID to an associated heartsensor module.
 14. A method for providing a non-verbal communicationbetween two persons, A and B, who are geographically remote from oneanother, the method comprising: monitoring person A's heartbeat andcommunicating that heartbeat to person B at least one of aurally andvisually, and simultaneously monitoring person B's heartbeat andcommunicating that heartbeat to person A at least one of aurally andvisually.
 15. The method of claim 14, wherein the communication iseffected via a web server.